Title :
Frame synchronization of convolutionally encoded sequences for packet transmission
Author :
Mostofa, M. ; Howlader, K. ; Woerner, B.D.
Author_Institution :
Bradley Dept. of ECPE, Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
This paper proposes a novel frame synchronization scheme for convolutionally encoded data packets. Rather than placing sync bits in a separate header, the sync bits are placed in a mid-amble and encoded as part of the data sequence, using the error correction encoder to resolve time ambiguities. This technique requires fewer bits for frame synchronisation. The performance improvement over conventional synchronization techniques is explored via simulation. The applicability of the scheme for synchronization of turbo codes is also discussed
Keywords :
convolutional codes; data communication; digital radio; error correction codes; iterative decoding; packet radio networks; sequences; synchronisation; turbo codes; AWGN channel; SNR; convolutional codes; convolutionally encoded data packets; convolutionally encoded sequences; data sequence; digital communications; error correction encoder; frame synchronization; iterative decoding; packet delay; packet radio environment; packet transmission; performance improvement; reliable data communications; simulation; sync bits; time ambiguities resolution; turbo codes; Additive white noise; Convolution; Convolutional codes; Degradation; Digital communication; Gaussian noise; Maximum likelihood estimation; Packet radio networks; Phase modulation; Signal to noise ratio;
Conference_Titel :
Communications, 2000. ICC 2000. 2000 IEEE International Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-6283-7
DOI :
10.1109/ICC.2000.853163